The Java EE 5 Tutorial (PDF) - Oracle Software Downloads

Adding UI Components to a Page Using the HTML ComponentTags
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rendered="false"
binding="#{cashier.specialOfferText}"
value="#{bundle.DukeFanClub}" />
...
Rendering a Hyperlink with the outputLink Tag
The outputLink tag is used to render a hyperlink that, when clicked, loads another page but
does not generate an action event. You should use this tag instead of the commandLink tag if you
always want the URL (specified by the outputLink tag’s value attribute) to open and do not
have to perform any processing when the user clicks on the link. The Duke’s Bookstore
application does not utilize this tag, but here is an example of it:
Documentation for this demo
The text in the body of the outputLink tag identifies the text the user clicks to get to the next
page.
Displaying a Formatted Message with the outputFormat Tag
The outputFormat tag allows a page author to display concatenated messages as a
MessageFormat pattern, as described in the API documentation for java.text.MessageFormat
(see http://java.sun.com/javase/6/docs/api/java/text/MessageFormat.html). Here is
an example of an outputFormat tag from the bookshowcart.jsp page of the Duke’s Bookstore
application:
The value attribute specifies the MessageFormat pattern. The param tag specifies the
substitution parameters for the message.
In the example outputFormat tag, the value for the parameter maps to the number of items in
the shopping cart. When the message is displayed on the page, the number of items in the cart
replaces the {0} in the message corresponding to the CartItemCount key in the bundle
resource bundle:
Your shopping cart contains " + "{0,choice,0#no items|1#one item|1< {0} items
This message represents three possibilities:
■ Your shopping cart contains no items.
■ Your shopping cart contains one item.
The Java EE 5Tutorial • June 2010